well tourneys don't have to last for a day, you can space them out over a week.
or have you can other people invigilate peoples matches if you want them to play simultaneously, also tourneys don't HAVE to be streamed. I understand if you want the community to get involved and watch the stream and all.
XBL doesn't have anywhere near the amount of problems PSN has, I think you'll be fine in that department.

lol thats like 3rd person thats told me that. Tried everything i could, toll free number. In the end i didnt protect my account with my phone number. Which i didnt because i was like why would i give google my phone number. Guy stole my email and then changed all my pass.

He even changed the email on my youtube account. He deleted all my emails up to august 31st. Ive had that email for 10 years so thousands of emails where filterd. It was dummy account only for my youtube. Still makes me sad.